Delayed positive gastrointestinal bleeding studies with technetium-99m-red blood cells: Utility of a second injection

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Journal of Nuclear Medicine; (USA)

OSTI ID:5893448

Jacobson, A F ^[1]

---

1. Nuclear Medicine Service, Seattle, WA (USA)

Two patients studied with technetium-99m-labeled red blood cells (RBCs) for gastrointestinal bleeding had positive findings only on 24-hr delayed images, at which time the site of bleeding could not be ascertained. In each instance, when additional delayed images suggested that active bleeding was occurring, a second aliquot of RBCs was labeled and injected. Sites of active hemorrhage were identified following further imaging in both patients. When delayed GI bleeding images are positive, further views should be obtained to ascertain if the pattern of intraluminal activity changes. If renewed active hemorrhage is suspected, reinjection with a second dose of labeled RBCs may identify the bleeding site.

• OSTI ID: 5893448
• Journal Information: Journal of Nuclear Medicine; (USA), Journal Name: Journal of Nuclear Medicine; (USA) Vol. 32:2; ISSN 0161-5505; ISSN JNMEA
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BODY FLUIDS
DIAGNOSIS
DIGESTIVE SYSTEM
DIGESTIVE SYSTEM DISEASES
DISEASES
ERYTHROCYTES
GASTROINTESTINAL TRACT
HEMORRHAGE
HOURS LIVING RADIOISOTOPES
IMAGE PROCESSING
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MATERIALS
NUCLEI
ODD-EVEN NUCLEI
PATHOLOGICAL CHANGES
PATIENTS
PROCESSING
RADIOISOTOPES
SYMPTOMS
TECHNETIUM 99
TECHNETIUM ISOTOPES
YEARS LIVING RADIOISOTOPES